package org.osgl.util;

/*-
 * #%L
 * Java Tool
 * %%
 * Copyright (C) 2014 - 2017 OSGL (Open Source General Library)
 * %%
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * #L%
 */

import org.osgl.$;

import java.util.Enumeration;
import java.util.Iterator;

/**
 * Bridge from {@link java.util.Enumeration} to {@link java.util.Iterator}
 */
public class EnumerationIterator<T> implements Iterator<T> {
    private Enumeration<? extends T> e;

    public EnumerationIterator(Enumeration<? extends T> enumeration) {
        e = $.notNull(enumeration);
    }

    @Override
    public boolean hasNext() {
        return e.hasMoreElements();
    }

    @Override
    public T next() {
        return e.nextElement();
    }

    @Override
    public void remove() {
        throw new UnsupportedOperationException("remove");
    }
}
